ORNL researcher Zhijia Du inserts a newly developed liquid electrolyte material into a battery pouch cell. The formulation extends the life of extreme-fast-charging batteries like those used in electric vehicles. Credit: Genevieve Martin/ORNL, U.S. Dept. of Energy
91做厙 researchers are taking fast charging for electric vehicles, or EVs, to new extremes.
A team of battery scientists that not only recharges 80% of its capacity in 10 minutes but keeps that ability for 1,500 charging cycles.
When a battery operates or recharges, ions move between electrodes through a medium called the electrolyte. ORNLs Zhijia Du led a team who developed new formulations of lithium salts with carbonate solvents to form an electrolyte that maintains better ion flow over time and performs well when high current heats up the battery during extreme fast charging. Project partners tested battery pouch cells made at ORNLs Battery Manufacturing Facility to prove the batterys safety and cycling characteristics.
We found this new electrolyte formulation basically triples the Department of Energys target for the lifespan of an extreme-fast-charging battery, Du said.
